package com.xyz.gulimall.product.service.impl;

import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import com.xyz.common.constant.ProductConstart;
import com.xyz.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.xyz.gulimall.product.dao.AttrGroupDao;
import com.xyz.gulimall.product.dao.CategoryDao;
import com.xyz.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.xyz.gulimall.product.entity.AttrGroupEntity;
import com.xyz.gulimall.product.entity.CategoryEntity;
import com.xyz.gulimall.product.service.CategoryService;
import com.xyz.gulimall.product.vo.AttrGroupRealtionVo;
import com.xyz.gulimall.product.vo.AttrRespVo;
import com.xyz.gulimall.product.vo.AttrVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.xyz.common.utils.PageUtils;
import com.xyz.common.utils.Query;
import com.xyz.gulimall.product.dao.AttrDao;
import com.xyz.gulimall.product.entity.AttrEntity;
import com.xyz.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.Resource;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Resource
    AttrAttrgroupRelationDao relationDao;

    @Resource
    AttrGroupDao attrGroupDao;

    @Resource
    CategoryDao categoryDao;

    @Resource
    CategoryService categoryService;

    @Resource
    AttrDao attrDao;

     @Override
     public PageUtils queryPage(Map<String, Object> params) {
              IPage<AttrEntity> page = this.page(
                      new Query<AttrEntity>().getPage(params),
                      new QueryWrapper<AttrEntity>()
              );
              return new PageUtils(page);
     }

     @Transactional(rollbackFor = Exception.class)
    @Override
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        //把attr值相同的复制为attrEntity
        BeanUtils.copyProperties(attr,attrEntity);
        //保存基本数据
        this.save(attrEntity);
        if(attr.getAttrType() == ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //保存关联关系
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            attrAttrgroupRelationEntity.setAttrGroupId(attr.getAttrGroupId());
            attrAttrgroupRelationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(attrAttrgroupRelationEntity);
        }
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public PageUtils queryBasePage(Map<String, Object> params, Long catelogId, String attrType) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>()
                .eq("attr_type","base".equalsIgnoreCase(attrType)?ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstart.AttrEnum.ATTR_TYPE_SALE.getCode());
        if(catelogId != 0){
            queryWrapper.eq("catelog_id",catelogId);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((obj)->{
                obj.eq("attr_id",key).or().like("attr_name",key);
            });
        }
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);
            if("base".equalsIgnoreCase(attrType)){
                //1.设置分类和分组的名字
                AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>()
                        .eq("attr_id", attrEntity.getAttrId()));
                if (attrId != null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }

            //2.设置分类
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCateLogName(categoryEntity.getName());
            }
            return attrRespVo;
        }).collect(Collectors.toList());
        pageUtils.setList(respVos);
        return pageUtils;
    }

    @Transactional(rollbackFor = Exception.class)
    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo =new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);

        if(attrEntity.getAttrType()==ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //设置分组信息
            AttrAttrgroupRelationEntity attrAttrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrAttrgroupRelation!=null){
                respVo.setAttrGroupId(attrAttrgroupRelation.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrAttrgroupRelation.getAttrGroupId());
                if(attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }
        //2.设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);
        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null) {
            respVo.setCateLogName(categoryEntity.getName());
        }
        return respVo;
    }


    @Transactional(rollbackFor = Exception.class)
    @Override
    public void updateAttr(AttrVo attr) {
         AttrEntity attrEntity = new AttrEntity();
         BeanUtils.copyProperties(attr,attrEntity);
       this.updateById(attrEntity);

        if(attrEntity.getAttrType()==ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1.修改分组关联
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if(count>0){
                relationDao.update(relationEntity,new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",attr.getAttrId()));
            }else {
                relationDao.insert(relationEntity);
            }
        }
    }

    /**
     * 根据分组id查找关联的所有基本属性
     * @return
     * @param attrgroupId
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<Long> attrIds = entities.stream().map((obj) -> {
            return obj.getAttrId();
        }).collect(Collectors.toList());
        if(attrIds == null|| attrIds.size()==0){
           return null;
        }
        List<AttrEntity> attrEntities = (List<AttrEntity>) this.listByIds(attrIds);
        return attrEntities;
    }

    /**
     * 删除
     * @param realtionVo
     */
    @Override
    public void deleteRelation(AttrGroupRealtionVo[] realtionVo) {
        //relationDao.delete(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id",1L).eq("attr_group_id",1L));
        List<AttrAttrgroupRelationEntity> collect = Arrays.asList(realtionVo).stream().map((obj) -> {
            AttrAttrgroupRelationEntity attrAttrgroupRelationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(obj, attrAttrgroupRelationEntity);
            return attrAttrgroupRelationEntity;
        }).collect(Collectors.toList());
        collect.forEach(System.err::println);
        relationDao.deleteBatchRelation(collect);

    }

    /**
     * 获取当点分组没有关联的所有属性
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属的分类里面的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1)、当前分类下的其他分组
        List<AttrAttrgroupRelationEntity> group = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>());
        List<Long> collect = group.stream().map(item -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        System.out.println("collect.get(0)");
        collect.forEach(System.err::println);
        //2.2)、这些分组关联的属性
        QueryWrapper<AttrEntity> eq = new QueryWrapper<AttrEntity>().eq("attr_type", ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(collect!=null && collect.size()>0){
            eq.notIn("attr_id", collect);
        }
        if(catelogId!=null){
            eq.in("catelog_id",catelogId);
        }
//        List<Long> attrIds = groupId.stream().map(item -> {
//            return item.getAttrId();
//        }).collect(Collectors.toList());

//        //2.3)、从当前分类的所有属性中移除这些属性；
//        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstart.AttrEnum.ATTR_TYPE_BASE.getCode());
//        if(attrIds!=null && attrIds.size()>0){
//            wrapper.notIn("attr_id", attrIds);
//        }
//        String key = (String) params.get("key");
//        if(!StringUtils.isEmpty(key)){
//            eq.and((w)->{
//                w.eq("attr_id",key).or().like("attr_name",key);
//            });
//        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), eq);

        PageUtils pageUtils = new PageUtils(page);

        return pageUtils;
    }


}